Paramagnetic resonance and relaxation in magnetic clusters

This paper presents the results of the ESR theory of trimeric exchange clusters. Both the isotropic and Dzyaloshinskii-Moriya exchange interactions are taken into account. The anomalous g -factor values and the EPR linewidths of chromium(III) and iron(III) carboxylates in polycrystalline samples are interpreted. The relaxation processes are considered.